数学六年级上册能简算的要简算两道
问题描述:
数学六年级上册能简算的要简算两道
12.5x25%x20+3.2
(24分之5+12分之7-3分之2)x48
答
12.5x25%x20+3.2
=12.5x0.25x4x5+3.2
=12.5x5x(0.25x4)+3.2
=62.5+3.2
=65.7
(24分之5+12分之7-3分之2)x48
=5/24x48+7/12x48-2/3x48
=10+28-32
=6